US3491826A - Extended opening die casting machine - Google Patents

Extended opening die casting machine Download PDF

Info

Publication number
US3491826A
US3491826A US565583A US3491826DA US3491826A US 3491826 A US3491826 A US 3491826A US 565583 A US565583 A US 565583A US 3491826D A US3491826D A US 3491826DA US 3491826 A US3491826 A US 3491826A
Authority
US
United States
Prior art keywords
plate
die
die casting
sliding plate
casting machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US565583A
Other languages
English (en)
Inventor
Richard E Potts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Farley Metals Inc
NL Industries Inc
Original Assignee
Nat Lead Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nat Lead Co filed Critical Nat Lead Co
Application granted granted Critical
Publication of US3491826A publication Critical patent/US3491826A/en
Assigned to FARLEY METALS, INC. reassignment FARLEY METALS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NL INDUSTRIES, INC. A NJ CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies

Definitions

  • This invention relates to die-casting machines and more particularly, to a die-casting machine having an extended die receiving opening.
  • While the present invention may be used in connection with a die-casting machine of the submerged-plunger type, it is more commonly used on a high pressure cold-chamber injection type machine. Machines of the later type are used for the die casting of higher melting point alloys, such as aluminum, magnesium, and brass.
  • FIG. 1 is a side elevational view of an improved die casting machine, according to the present invention.
  • FIG. 2 is a side elevational view, similar to FIG. 1, drawn on an enlarged scale, and showing portions of the die casting machine in vertical cross section;
  • FIG. 3 is a side elevational view, similar to FIG. 2, showing the die casting machine, according to the present invention, in a locked position;
  • FIG. 4 is a vertical sectional view, with parts broken away, taken along the line 44 of FIG. 2.
  • the invention relates to an extended opening die casting machine having the conventional longitudinally extending base on which a front plate is fixedly mounted to carry the cover die.
  • a back plate is spaced from the front plate on the base and a plurality of guide bars extend between and are connected to the front plate and the back plate.
  • a sliding plate on which the ejector die is mounted is usually moved towards and away from the front plate by a crab mechanism.
  • the present invention interposes an auxiliary plate between the back plate and the sliding plate, and the crab mechanism moves the auxiliary plate forward and back.
  • a separate cylinder means is provided to impart relative movement between the auxiliary plate and the die carrying sliding plate to supplement the longitudinal stroke of the crab mechanism, and blocking means are moved into position between the relatively movable sliding plate and auxiliary plate so that the forces tending to open the machine during a die casting operation are taken through the blocking means, the auxiliary plate and the crab mechanism. These forces then appear as tension forces in the guide bars which join the front and back plates in the usual manner.
  • an extended opening die casting machine is indicated by the reference number 10.
  • the die casting machine 10 comprises a longitudinally extending base 11 having the usual upper guide tracks.
  • a front plate 13 is fixedly mounted to the base 11 and has means on an inner surface 14 for mounting a cover die 15.
  • the die casting machine 10 is a cold-chamber machine and includes shot mechanism generally indicated -by the reference number 16 (see FIG. 1).
  • the shot mechanism 16 comprises a pedestal 17, which is mounted on the base 11, a hydraulic shot cylinder 18, and a shot sleeve 19 which is in communication with the interior of the die halves, through an opening in the cover die 15 (see FIG. 3), in a manner well known in the art.
  • a back plate 21 is spaced from the front plate 13 and is positioned on the guide tracks 12 of the base 11.
  • the plate 21 is provided with rollers 22 which engage and ride upon the tracks 12.
  • a plurality of heavy duty guide bars 23 extend between and are connected to the front plate 13 and the back plate 21 and the distance setting between the front and back plates is adjustable by guide bar nuts 24 as is the usual practice.
  • a sliding plate 25, having rollers 26, in engagement with tracks 12 is positioned between the front plate 13 and the back plate 21'.
  • the sliding plate 25 has a plurality of openings 27 through which the guide bars 23 extend.
  • Means are provided on a surface 28 of the sliding plate 25 for mounting an ejector die 29 in an opposed and complementary relationship to the cover die 15, which is mounted on the front plate 13.
  • An auxiliary plate 31, having rollers 32, is mounted for longitudinal movement along the tracks 12 of the base 11.
  • the auxiliary plate 31 is positioned between the sliding plate 25 and the back plate 21 and has a plurality of openings 33 through which the guide bars 23 extend (see FIG. 4).
  • the closing means comprises a conventional crab mechanism generally indicated by the reference numeral 34.
  • the crab mechanism 34 includes a closing cylinder 35 carried by the back plate 21.
  • the cylinder 35 has a rod 36 connected to a cross head 37 (see FIG. 3).
  • the cross head 37 is mounted for movement on a pair of cross head guide bars 38.
  • a plurality of toggle links 39 extend between and are pivotally connected to the cross head 37, the back plate 21, and the auxiliary plate 31, respectively.
  • cylinder means are provided for moving the sliding plate 25 between a retracted position (shown in FIG. 1) and an extended position (shown in FIG. 3) wherein the sliding plate 25 and its supporting structure are in a closed position to receive the forces generated by the die casting operation.
  • the cylinder means includes a cylinder 41 which is connected to and carried by the auxiliary plate 31.
  • the cylinder 41 has a rod 42 which is connected to the sliding plate 25.
  • the sliding plate 25 has a striking surface 43 adjacent the auxiliary plate 31.
  • Blocking means including a plurality of compression blocks 44 are interposed between the auxiliary plate 31 and the striking surface 43 of the sliding plate 25 when the sliding plate 25 is in the extended position shown in FIG. 3.
  • Each of the compression blocks 44 is a right parallelepiped in shape, having opposed parallel surfaces which lie in planes perpendicular to the longitudinal axis of the base 11. The opposed parallel surfaces of the compression blocks 44 engage complementary surfaces on the auxiliary plate 31 and the sliding plate 25.
  • the blocks 44 have a length in the axial direction of the machine sufficient to provide an extended die opening (see FIG. 1).
  • Displacement means are provided for moving the compression blocks 44 between a rest position (shown in FIG. 1) which is exterior of the normal path of movement of the sliding plate 25 and a blockingposition (shown in FIG. 3). When the compression blocks 44 are in their blocking position they are in force transmitting relationship with the auxiliary plate 31 and the striking surface 43 ,of the sliding plate 25.
  • the displacement means comprises cylinders 45 having rods 46 which are operably connected to the compression blocks 44.
  • the cylinders 45 are supported by brackets 47 which are mounted on and carried by the auxiliary plate 31*. It should be noted that other types of displacement means may be utilized and still fall within the scope of the present invention.
  • the diehalves 1S and 29 are secured to the front plate 13 and to the sliding plate 25.
  • the machine is adjusted tothe proper closing position by setting nuts 24 in the guide rods 23. Thereafter, the operation will be described with the parts standing in the die open position, assuming 4 I v i is actuated and the cylinder rod 42 moves to the right (as shown in FIG. 1) thereby moving the sliding plate 25 to its extended position.
  • the displacement means cylinders 45 are actuated and the compression blocks 44 move inwardly to their blocking position between the auxiliary plate 31 and the striking surface 43 of the sliding plate 25.
  • the ejector die 29 has begun its mating engagement with the cover die 15.
  • both the sliding plate 25 and the auxiliary plate 31 are in the closed or extended position, shown in FIG. 3, the ejector die 29 and the cover die 15 are in a complementary relationship and are ready for the casting shot.
  • metal is injected from the shot sleeve 19, in the normal manner, and the die casting machine and its component parts are placed under high pressures. This force is transmitted rearwardly through the sliding plate 25, the compression blocks 44, the auxiliary plate 31, aligned ones of the toggle links 39, the back plate 21, and to the massive guide bars 23 movement of which is resisted by the front plate 13 and the machine frame.
  • the die casting machine 10 is opened from the position shown in FIG. 3 to eject the cast part.
  • the closing cylinder 35 of the crab mechanism 34 is actuated and the cylinder rod 36 carrying the cross head 37 is moved to the left (see FIG. 2) until the auxiliary plate 31 has reached the retracted position shown in FIG. 2.
  • the ejector die 29 has not completely cleared the cover die 15 and the cast part still cannot be removed.
  • the cylinder 41 carried by the auxiliary plate 31 is actuated and the sliding plate 25 is moved from its extended position, shown in *FIG. 2, to its retracted position, shown in FIG. 1.
  • the ejector die 29 has cleared the cover die 15 and the cast part maybe ejected in the usual manner.
  • An extended opening die casting machine comprising, a longitudinally extending base, a front plate fixedly mounted to said base, means on said front plate for mounting a cover die, aback plate spaced from said front plate and positioned on said base, a plurality of guide bars extending between and connected to said front plate and said back plate, a sliding plate positioned between said front plate and said back plate mounted for movement on said base, means on said sliding plate for mounting an ejector die'in opposed and complementary relationship to a cover die mounted on said front plate, an auxiliary plate positioned between said sliding plate and said back plate mounted for movement on said base, blocking means including at least two compression blocks remova'bly mounted between said auxiliary plate and said sliding plate, each of said compression blocks having opposed parallel surfaces which lie in planes perpendicular to said longitudinally extending base, such compression block surfaces engaging complementary surfaces on said auxiliary plate and said sliding plate respectively, each of said compression blocks having a length sufficient to provide an extended die opening, displacement means for moving said compression blocks between a rest position exterior
  • said closing means comprises a crab mechanism having toggle links extending between said 'back plate and said auxiilary plate and at least one cylinder operatively connected to said toggle links and to said back plate.
  • said displacement means comprises at least one cylinder operatively connected to each of said compression blocks.
  • An extended opening die casting machine including at least one cylinder operatively connected between said auxiliary plate and said sliding plate.
  • a die casting machine having a base, a front plate fixed to said base, a back plate spaced from said front plate, a plurality of guide bars extending between and connected to said front plate and said back plate, a sliding plate positioned between said front plate and said back plate and mounted for movement on said base, and means on said front plate and on said sliding plate for mounting a cover die and an ejector die in complementary positions
  • the invention comprising, an auxiliary plate positioned between said sliding plate and said back plate and mounted for movement on said base, closing means including a crab mechanism having toggle linkage extending between said back plate and said auxiliary plate, blocking means including at least two compression blocks removably mounted between said auxiliary plate and said sliding plate, each of said compression blocks having opposed parallel surfaces which lie in planes perpendicular to the longtudinal axis of said base, such compression block surfaces engaging complementary surfaces on said auxiliary plate and said sliding plate respectively, each of said compression blocks having a length suflicient to provide an extended die opening and displacement means for moving said compression blocks between
  • said displacement means comprising cylinders carried by said auxiliary plate, each of said cylinders being operatively connected to a respective one of said compression blocks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
US565583A 1966-07-15 1966-07-15 Extended opening die casting machine Expired - Lifetime US3491826A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56558366A 1966-07-15 1966-07-15

Publications (1)

Publication Number Publication Date
US3491826A true US3491826A (en) 1970-01-27

Family

ID=24259263

Family Applications (1)

Application Number Title Priority Date Filing Date
US565583A Expired - Lifetime US3491826A (en) 1966-07-15 1966-07-15 Extended opening die casting machine

Country Status (5)

Country Link
US (1) US3491826A (de)
CH (1) CH452122A (de)
DE (1) DE1558281B1 (de)
GB (1) GB1172888A (de)
SE (1) SE351379B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767352A (en) * 1971-07-12 1973-10-23 Husky Mfg Tool Works Ltd Injection mold with unloading mechanism
US4064928A (en) * 1976-11-30 1977-12-27 Ex-Cell-O Corporation Die casting machine
US4340350A (en) * 1978-10-20 1982-07-20 Austung Proprietary Limited Process and apparatus for the manufacture of sintered tungsten carbide tool tips
DE29600634U1 (de) * 1996-01-16 1996-03-07 Battenfeld Gmbh Vorrichtung zum Schließen des Werkzeugs einer Kunststoffverarbeitungsmaschine
DE102006054072A1 (de) * 2006-11-16 2008-05-21 Hwa Chin Machinery Factory Co., Ltd., Yung-Kang Vorrichtung zum Schliessen/Öffnen eines Formwerkzeuges einer Spritzgießmaschine
DE102004008889B4 (de) * 2003-02-24 2008-07-24 Toyota Jidosha Kabushiki Kaisha, Toyota Formmaschine und Formungsverfahren
CN105964974A (zh) * 2016-06-27 2016-09-28 广州德志金属制品有限公司 一种开模稳定性高的压铸三板模具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345893A (en) * 1980-10-20 1982-08-24 Prince Corporation Molding machine
CN103895147A (zh) * 2014-04-09 2014-07-02 郁震宇 调模机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112706C (de) *
US2744304A (en) * 1952-12-20 1956-05-08 Nat Lead Co Tandem toggle press
US2848771A (en) * 1955-03-03 1958-08-26 Buehler Ag Geb Apparatus for closing and locking of die casting machines and the like
US3161918A (en) * 1963-06-10 1964-12-22 Francis E Zearbaugh Die-casting apparatus
GB995899A (en) * 1961-11-21 1965-06-23 Buehler Ag Geb Improvements in or relating to die closure apparatus for die casting, injection moulding and other pressure machines
US3263277A (en) * 1963-06-04 1966-08-02 Mannesmann Meer Ag Hold-shut device for injection molding
US3310840A (en) * 1963-09-17 1967-03-28 Aoki Eizo Hydraulically actuated clamping mechanism for the mold in an injection molding apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125596B (de) * 1955-03-03 1962-03-15 Buehler Ag Geb Druckgiessmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112706C (de) *
US2744304A (en) * 1952-12-20 1956-05-08 Nat Lead Co Tandem toggle press
US2848771A (en) * 1955-03-03 1958-08-26 Buehler Ag Geb Apparatus for closing and locking of die casting machines and the like
GB995899A (en) * 1961-11-21 1965-06-23 Buehler Ag Geb Improvements in or relating to die closure apparatus for die casting, injection moulding and other pressure machines
US3263277A (en) * 1963-06-04 1966-08-02 Mannesmann Meer Ag Hold-shut device for injection molding
US3161918A (en) * 1963-06-10 1964-12-22 Francis E Zearbaugh Die-casting apparatus
US3310840A (en) * 1963-09-17 1967-03-28 Aoki Eizo Hydraulically actuated clamping mechanism for the mold in an injection molding apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767352A (en) * 1971-07-12 1973-10-23 Husky Mfg Tool Works Ltd Injection mold with unloading mechanism
US4064928A (en) * 1976-11-30 1977-12-27 Ex-Cell-O Corporation Die casting machine
US4340350A (en) * 1978-10-20 1982-07-20 Austung Proprietary Limited Process and apparatus for the manufacture of sintered tungsten carbide tool tips
DE29600634U1 (de) * 1996-01-16 1996-03-07 Battenfeld Gmbh Vorrichtung zum Schließen des Werkzeugs einer Kunststoffverarbeitungsmaschine
DE102004008889B4 (de) * 2003-02-24 2008-07-24 Toyota Jidosha Kabushiki Kaisha, Toyota Formmaschine und Formungsverfahren
DE102006054072A1 (de) * 2006-11-16 2008-05-21 Hwa Chin Machinery Factory Co., Ltd., Yung-Kang Vorrichtung zum Schliessen/Öffnen eines Formwerkzeuges einer Spritzgießmaschine
CN105964974A (zh) * 2016-06-27 2016-09-28 广州德志金属制品有限公司 一种开模稳定性高的压铸三板模具
CN105964974B (zh) * 2016-06-27 2018-08-07 广州德志金属制品有限公司 一种开模稳定性高的压铸三板模具

Also Published As

Publication number Publication date
DE1558281B1 (de) 1970-12-10
GB1172888A (en) 1969-12-03
CH452122A (de) 1968-05-31
SE351379B (de) 1972-11-27

Similar Documents

Publication Publication Date Title
US3270383A (en) Method of die casting
US3161918A (en) Die-casting apparatus
US3491826A (en) Extended opening die casting machine
US3165796A (en) Large angular core locking mechanism for die casting
GB1582995A (en) Die casting machine
US3547184A (en) Die casting machine
US5542465A (en) Die space access system for tie-bar style die-casting machines
US2477368A (en) Injection molding apparatus
GB2158389A (en) Apparatus for opening and closing a mould
US6761208B2 (en) Method and apparatus for die-casting a V-block for an internal combustion engine
US3960201A (en) Injection device for molding machines
US2335807A (en) Mold locking mechanism
US2356338A (en) Extrusion-molding method
US3208113A (en) Die casting machine
US2244123A (en) Locking and aligning means for machines
DE1458061B2 (de) Verfahren zur Herstellung dichter Druckgußstücke mittels einer Kaltkammer-Druckgießmaschine
US2220776A (en) Pressure casting apparatus
US3015863A (en) Bottom casting articles
KR0181265B1 (ko) 다이캐스팅 기계
US5964274A (en) Die assembly for a die casting machine
US2015462A (en) Machine for hot-forging, press and die-casting of metals
US3608623A (en) Wedge-shaped chock means for locking impression blocks of a die assembly
US1898671A (en) Die casting machine
US2581550A (en) Extrusion molding machine
US3239896A (en) Die casting machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: FARLEY METALS, INC., 233 SOUTH WACKER DRIVE, CHICA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:NL INDUSTRIES, INC. A NJ CORP.;REEL/FRAME:004217/0800

Effective date: 19831212